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Arrange the following metals in the order in which they displace each other from the solution of their salts Al ,Cu, Fe, Mg and Zn.

3.1     Arrange the following metals in the order in which they displace each other from the solution of their salts.
          Al, Cu, Fe, Mg and Zn.

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The order in which metals displace each other from the solution of their salts can be given with the help of their standard electrode potential. Since magnesium has the least standard electrode potential so it is the most strong reducing agent. So the required order we get is:- 

            Mg > Al > Zn > Fe > Cu

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